Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Dragão dos Investimentos solicitou £100.000 e é apoiado pela Empresária Kay Russell?
 ###Tabelas: CREATE TABLE table_of_nominations (table_of_nominations_id AUTO_INCREMENT PRIMARY KEY, Week 1 VARCHAR, Week 2 VARCHAR, Week 6 VARCHAR, Week 9 VARCHAR, Week 12 VARCHAR) CREATE TABLE series_7 (series_7_id AUTO_INCREMENT PRIMARY KEY, Episode VARCHAR, First aired VARCHAR, Entrepreneur(s) VARCHAR, Company or product name VARCHAR, Money requested (£) VARCHAR, Investing Dragon(s) VARCHAR) CREATE TABLE 2009-10_table (2009-10_table_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Played VARCHAR, Drawn VARCHAR, Lost VARCHAR, Points for VARCHAR, Points against VARCHAR, Tries for VARCHAR, Tries against VARCHAR, Try bonus VARCHAR, Losing bonus VARCHAR, Points VARCHAR) CREATE TABLE sources_of_income (sources_of_income_id AUTO_INCREMENT PRIMARY KEY, Region VARCHAR, Employment ( salaries & wages) VARCHAR, Self employed VARCHAR, Investment income VARCHAR, Working tax credit VARCHAR, State pensions VARCHAR, Occupational pensions VARCHAR, Disability benefits VARCHAR, Other social security benefits VARCHAR, Other income sources VARCHAR) CREATE TABLE round_chart (round_chart_id AUTO_INCREMENT PRIMARY KEY, Name/Name of Act VARCHAR, Age(s) VARCHAR, Genre VARCHAR, Act VARCHAR, Hometown VARCHAR, Qtr. Final (Week) INT, Semi Final (Week) VARCHAR, Position Reached VARCHAR)  
SELECT Investing Dragon(s) FROM series_7 WHERE Money requested (£) = 100,000 AND Entrepreneur(s) = kay russell